改进型移动床生物膜反应器处理有机废水的试验楼菊青

23320075WATERRESOURCESPROTECTIONVol.23No.3May2007　　:(1973—),,,,,。E-mail:[e-mail](,　310035):改进型移动床生物膜反应器(CMCBR)是在普通移动床生物膜反应器中引入导流板,使填料在全池循环移动,消除了普通移动床生物膜反应器的死角。在CMCBR处理模拟生活污水的试验中,研究了有机物的去除效果,考察了容积负荷、水力停留时间、冲击负荷等参数对处理效果的影响。试验发现,在填料填充比例为50%(体积比),进水COD质量浓度为320～550mg/L,水力停留时间为3h的条件下,出水COD质量浓度小于100mg/L,达到国家污水综合排放标准的一级标准。反应器具有较强的抗冲击负荷能力,出水水质稳定。:有机废水;废水处理;移动床;生物膜反应器:X703　　　:A　　　:1004-6933(2007)03-0063-04StudyonamodifiedmovingbedbiofilmreactorfortreatmentoforganicwastewaterLOUJu-qing(DepartmentofEnvironmentalEngineeringofZhejiangGongshangUniversity,Hangzhou310035,China)Abstract:Amodifiedmovingbedbiofilmreactorwasdesignedbyaddingflangeplatetoordinarymovingbedbiofilmreactor(MBBR).ThefillingmaterialscancirculateinthemodifiedMBBR.ThemodifiedMBBRwasusedfortreatmentofdomesticwastewaterinordertostudytheremovalefficiencyoforganicmattersandinvestigatetheinfluenceofvolumetricloading,hydraulicretentiontime(HRT)andshockloadingonthetreatmenteffect.Itshowsthatundertheconditionsthatthevolumeratiooffillingswas50%,theCODconcentrationwas320—550mg/L,andHRTwas3h,theconcentrationofeffluentCODwaslessthan100mg/L,whichsatisfiedthefirstgradeofnationalstandardforwastewaterdischarge.ThereactorhasahightolerationtoCODloadingshockanditcouldkeeptheeffluentqualitystable.Keywords:organicwastewater;wastewatertreatment;movingmed;biofilmreactor　　(MovingBedBiofilmReactor,MBBR),。,,,[1]。(CMCBR),。、,[2],。,。CMCBR3:、(1)。,。,,,、、,,,,,,,,,。·63·1　CMCBR1　1.1　、,,,,,BOD∶N∶P=100∶5∶1。BOD∶COD≈0.7[3]。1.2　1,CMCBR,1m,0.25m,1.4m,1.2m。,172L,80L。QX—501[4]。50%。,[5-6]。1.3　2。1—;2—;3—;4—;5—CMCBR;6—;7—;8—;9—;10—2　1.4　YSI52;COD;XSP-3C;103～105℃,;MA235pHpH。[7]。2　2.1　CMCBR,COD。COD300～550mg/L,COD3。COD4。3　COD4　COD3,COD,,;,。4,,COD,。,COD。,,COD。4h,COD87.7%;3h,COD84%;2h,,COD71.7%。2h,COD350mg/L,COD·64·(COD100mg/L)。4h,COD。,,,,,。,,。、,3h。2.2　2.2.1　故障的冲击,6～7h,,,2,,COD81%。CMCBR。2.2.2　水量的冲击CMCBR,4h,COD320mg/L,2h,24h4h,CODCODCOD。5。5　COD200%,CMCBRCOD18.6%。56h,COD87%。,,COD,,,。2.3　,,[8]。,,。,,,。,1mm[9]。1,3h,6。1　/h/(mg·L-1)/(mg·L-1)/(mg·L-1)2230839727053203137324044178922320126　COD3000～5000mg/L,1～2mg/L,1.5～4.0mg/L[10]。CMCBR2100mg/L,,。,。,,,,,,。6,,,。,,,。,,,。CMCBR,“”“”。3　　a.CMCBR,2h、3h、4h,71.7%、84%、87.7%。3h。COD320～550mg/L,·65·3h,COD100mg/L,。b.CMCBR、,。c.CMCBR、。d.,CMCBR,:①,,;②,,,。CMCBR,,,。:[1],.、[J].,2003,29(4):13-15.[2],,.[J].,2002,33(1):21-23.[3]ZHOUP,HEJ.Biofilmairliftsuspensionreactortreatmentofdomesticwastewater[J].Water,AirandSoilPollution,2003,144(1):81-100.[4],,,.[J].,2003,4(4):31-34.[5],.[J].,1992,8(3):13-17.[6]ALVESCF,MELOLF,VIEIRAMJ.InfluenceofmediumcompositiononthecharacteristicsofadenitrifyingbiofilmformedbyAlcaligenesdenitrificansinafluidisedbedreactor[J].ProcessBiochemistry,2002,37(8):837-845.[7].[M].4.:,2002.[8],.[J].,1999,15(6):5-8.[9],.[J].,1994,15(2):1-5.[10]GAISL,BAUMANNKH.Theroleoftheliquidphaseinthedegradationoftolueneandm-Cresolwithinabiofilmtrickle-bedreactor[J].EngineeringinLifeSciences,2001,1(4):159-172.(:2006-10-18　:　)(上接第47页)[4],,,.[J].,2004,22(3):507-512.[5],,,.[M].:,1987.[6]YANGHD,ROSEN,BATTARBEERW.DistributionofsometracemetalsinLochnagar,aScottishmountainlakeecosystemanditscatchment[J].TheScienceoftheTotalEnvironment,2002,285:197-208.[7]SULLIVANKA,MASONRP.TheconcentrationanddistributionofmercuryinLakeMichigan[J].TheScienceoftheTotalEnvironment,1998,213:213-228.[8]SONESTENL.Mercurycontentinroach(RutilusrutilusL.)incircumneutrallakes-effectsofcatchmentareaandwaterchemistry[J].EnvironmentalPollution,2001,112:471-481.[9],,,.Hg[J].,2005,5(1):9-11.[10],.[M].:,1998.[11],,.SWB-1-[J].,1998,16(1):94-96.[12].、、、[J].,1994,7(2):96-97.[13],,,.[J].,2001,20(5):357-359.[14],,.[J].,2004,23(3):83-88.[15].[M].:,1990.[16].[M].:,1996.[17]DUPRETP,GRANIERTJ,KEIFES,etal.VariationofmercuryconcentrationinfishtakenfromLakeBoeuf,SoutheasternLouisiana[J].MicrochemicalJournal,1999,61:156-164.[18]KOTNIKJ,HORVATM,MANDICV,etal.Influenceofthesostanjcoal-firedthermalpowerplantonmercuryandmethylmercuryconcentrationsinLakeVelenje,Slovenia[J].TheScienceoftheTotalEnvironment,2000,259:85-95.[19]HUGGETTDB,STEEVENSJA,ALLGOODJC,etal.MercuryinsedimentsandfishfromNorthMississippiLakes[J].Chemosphere,2001,42:923-929.(:2005-09-25　:　)·66·